Magazine grinder



Nov. l, 1'927.

o. ANDRESEN MAGAZ INE GRINDER 'Filed Jan. 7, 1927.'

#wf/WUR O/o Andres en by {ngd Affys 7lik-"atented Nov. 1, 1927.

PATENT OFFICE.

OTTO ANDRESEN, OF VINDERN, NEAR OSLO, NORWAY.V

MAGAZINE GRINDER.

Application filed January 7, 1927, Serial No. 159,713, and in Norway January 14, 1926.

The present inventionv relates to a magazine grinder of the kind which comprises,

located above the rotating grindstone, a mag-y The inventionis particularly adapted fory 10 use in connection with a magazine grinding apparatus according to applicants U. S. Patent No; 1,591,801 dated July 6th, 1926, but as it will be easily understood the invention may also be adapted for other grinding apparatus than the particular lrind specified and claimed in the said previous patent.

In accordance with the present invention the feeding apparatus, which wholly or partlv form the lower part of the magazine, are mounted on a member, which is adapted to perform a movement in a radial or approximately radial direction with regard to the grindstone, the said member being acted upon by a power mechanism such as a hydraulic pressor the like which acts to press the feeding mechanism as a whole towards the grindstone.

By means of this arrangement the pres sure of the woodlogs against the grinding surface is not dependent upon the movement of the feeding mechanism, which may be infiuenced to some extent by the yshape and size of the logs, but is controlled by means of the force acting upon the said radially moveable member.

The feeding mechanism (feeding chains, rollers or the like), as will be understood, serves only to move the said radially moveable member away from the grinding surface, said movement being intermittent or continual.

The radially or substantially radially moveable member carrying the feeding mechanism may preferably consist of a lever which is pivoted at one end and the free end of which is acted upon by the said power, such as a lhydraulic press or the like.

t will be understood that in an arrangement such as the one herein specified, the power consumption of the grinding apparatus may be solely regulated by regulating the force acting upon the said moveable member, the pow-er consumption being dependent solely upon this force and the coeiiicient of friction between the wood and the grindstone. n

On the drawing is diagrammatically illustrated one form of the invention showing how Vthe invention may be applied to a magazine grinder of the type specified in applicants above mentioned previousV patent.

twill be seen from the drawing that the feeding mechanism, which in accordance with the said previous patent consists in the rotating drum 1 and the feeding chain 5, are both mounted on the pivoted lever 6, which is pivoted at 7 and the free end of which is under the influence of the power ,P derived from the hydraulic cylinder 8.

Claims:

1. In a magazine grinder a rotating grindstone, a woodlog magazine located above the same, feeding mechanism in the part of the wood log magazine adjacent the grinding surface, said feeding mechanism being mounted on a pivoted arm the free end of which is acted upon by an adjustable pressure so as to press the wood log magazine against the grinding surface.

2. In a magazine grinder a rotating grindstone, a wood log magazine located above the same, feeding mechanism in the part of the wood log magazine adjacent the grinding` surface, said feeding mechanism being mounted on. a pivoted arm, the free end of which is connected to the piston of a hydi'aulie servomotor so as to press the wood log magazine against the grinding surface, with an adjustable pressure.

3. In a magazine grinder a rotating grindstone, a wood log magazine located above OTTO ANDRESEN. 

